Effect of the Distance Between the Non-Core Turns of a Meander Microstrip Line on the Attenuation of the Interfering Ultrashort Pulse and Signal Integrity

The paper analyzes ultrashort pulse (USP) decomposition in the meander microstrip line (MSL) turns when the distance (s
n
) between the non-core turns changes, both separately and simultaneously. It was found that the decrease in s
n
strengthens the distortion effect on the line output voltage waveform and decreases its amplitude. The results of N-norm analysis demonstrate that the reduction of sn decreases the probabilities of electrical breakdown, arc discharge, and component burnout. At the same time, due to total pulse energy, the probability of dielectric breakdown does not change, and the probability of component damage increases. The maximum attenuation of the USP at the output of the folded turn was 4.95 times. The results obtained in different software products show an acceptable agreement. The signal integrity was analyzed using a pseudo-random binary sequence source (PRBS) of 10.000 bits and bitrates of 50 Mbit/s and 100 Mbit/s. The effect of sn on the useful signal integrity is demonstrated. It is shown that at 50 Mbit/s some characteristics are improved. Based on the useful signal integrity analysis, it was pro-posed to use a folded turn with a phase locked oscillator PLL1707. It was also proposed to use the folded turn together with a gas-dis-charge device to improve the protective characteristics.